b = 'b'
a = 1
print(b.isdigit())
list1 = [1,2,3]
f = 0.2
# print(f.isdigit()) # 报错

# while循环可以有一个else子句
"""
count = 1
while count <= 3:
    print(f"time {count} ")
    count += 1
else:
    print("end")


import random

secret_number = random.randint(1, 100)
print(secret_number)

"""



num = 0
while num < 5:
  num += 1
  if num == 3:
      continue
  print(num)


